I think you already have your answers in this thread? the Performer isnt class compliant so wont work with iOS devices.
iOS compatibility with RANE Performer - DJ Hardware - Algoriddim Community Forums
I may be wrong here but unless Apple create some way of allowing iOS devices to download and use proprietry drivers, this is never going to happen.
There’s also factoring in that these drivers are almost always developed for Windows and Mac OS specifically, which would also not work on iOS devices.
